Electrical design software for Belgium
Create an installation plan with OhmCAD
Show where outlets, lamps and switches are located. Build your electrical installation plan on a floor plan and connect its symbols to the same circuits used by your single-line diagram.
For Belgian electricians, installers and renovators who want a readable plan of their electrical installation. Work from the spatial layout to the electrical assignments, using your actual installation as the reference.
Create your free pilot accountCreating single-line diagrams and installation plans is currently free during the public pilot. No payment card needed; access is not promised to remain free permanently.
What is an electrical installation plan?
An installation plan, or situatieschema, shows electrical components on a building's floor plan. While the single-line diagram summarises the electrical structure, this plan identifies the room and physical location of each component. Together, the documents help you understand, review and later modify the installation. A readable scale, recognisable symbols and consistent circuit references matter.
Draw your installation plan in four steps
Draw or load a floor plan
Draw walls, doors and windows, or load a JPG, PNG or SVG floor plan as a background. Check its scale against a known dimension. A background image does not automatically create walls or electrical components.
Place consumers, switches and symbols
Use the existing placement tools to position outlets, lamps and switches where they actually belong. Leave space for labels and avoid overlapping symbols. Rooms and layers help you keep a busy plan readable.
Connect the components to circuits
Set up cabinets and circuits, then assign components using the linking dialog. Define switch-to-lamp relationships explicitly. Check circuit letters on the plan, particularly when changing the circuit structure later.
Review the sheets and create a PDF
Add situation sheets for extra floors where needed. In PDF export, choose sheets, layers, paper sizes and orientation. Inspect the actual output in the preview: text that looks readable on a screen may be too small on paper.
From installation plan to single-line diagram
Place components once and link them to the project's electrical structure. That data forms the basis of the single-line diagram. Both diagrams describe the same installation from different perspectives. You do not need to maintain electrical data in two separate drawings, but must still check each assignment.
Practical example: ground floor and upper floor
Use a separate situation sheet for each floor and place its background and components inside the intended sheet. Cabinets and circuits remain project-wide, including when a circuit contains components on several floors. Review each page separately and compare circuit labels with the single-line diagram before exporting the full document.
Review your diagrams against the actual installation
OhmCAD helps prepare electrical documentation, but does not perform an official inspection or an automatic AREI/RGIE compliance assessment. Compare the output with the real installation and have technical choices reviewed by a qualified professional where needed. A successful PDF export does not establish compliance.
Start your first electrical project
Create an account, confirm your email address and open your workspace. The getting-started guide helps you set up a project, place components and review your first diagram.
Create your free pilot account Getting startedPaid plans may be introduced after the pilot. Users will be informed before any pricing changes.